Dimensions: Centre
Arena: The center arena was 287 ft long and 180 ft wide. The
arena was covered with 15cm of sand

Dimensions of Arena
Wall: 15 ft high

Vaults span between
80 radial walls to support tiers of seating and for
passageways and stairs.

The Hypogeum
(meaning underground). The hypogeum consisted of two-level
subterranean network of tunnels and 32 animal pens. There
were 80 vertical shafts provided instant access to the arena
for animals and scenery. Large hinged platforms, called
hegmata provided access for large animals

Trap Doors in
Arena: 36

Retractable Awning
- the Velarium. Provided cover and shade: 3 stone brackets
in each of the 80 bays. Brackets supported 240 wooden masts
on which canvas awnings were hung

Drains were built
8m (26ft) underneath the structure

Foundations under
the outer walls and seating were 12-13m (39-42ft) deep

Foundations under
the inner ellipse of the arena were 4m (13ft) deep

Seating: 40cm width
per spectator and 70cm leg room

Marble used -
Approx 100,000 cubic metres

Rows of Seats: 60
-80 Rows of seats

Dimensions of the
Different levels of the Colosseum: Level 1 - Ground Level

The first level is
34 ft high and the Doric arches are 23 ft high and 14 ft
wide.

Level 2. The second
level, in the Ionic "order" or style, is 38 ft high and the
arches measure 21 ft high and 14 ft wide

Level 3. The third
level, in the Corinthian style, is 37 ft high with the
arches being 21 ft high and 14 ft wide.